public class 蜗牛爬井 {
    public static void main(String[] args) {
        int 井 = 10;
        int b = 0;
        for(int n = 0 ; n < 10 ; n++ ){
            n =  井 - 2 + 1;
            b = n;
        };
        System.out.println(b);
    }
}
